<?php
if(!defined('BASEPATH')) exit('No direct script access allowed');
 
/*
 * CKEditor helper for CodeIgniter
 *
 * @author Samuel Sanchez <samuel.sanchez.work@gmail.com> - http://kromack.com/
 * @package CodeIgniter
 * @license http://creativecommons.org/licenses/by-nc-sa/3.0/us/
 * @tutorial http://kromack.com/developpement-php/codeigniter/ckeditor-helper-for-codeigniter/
 * @see http://codeigniter.com/forums/viewthread/127374/
 * @version 2010-08-28
 *
 */
 
/**
 * This function adds once the CKEditor's config vars
 * @author Samuel Sanchez
 * @access private
 * @param array $data (default: array())
 * @return string
 */
function cke_initialize($data = array()) {
       
        $return = '';
       
        if(!defined('CI_CKEDITOR_HELPER_LOADED')) {
               
                define('CI_CKEDITOR_HELPER_LOADED', TRUE);
                $return =  '<script type="text/javascript" src="'.base_url(). $data['path'] . '/ckeditor.js"></script>';
                $return .=      "<script type=\"text/javascript\">CKEDITOR_BASEPATH = '" . base_url() . $data['path'] . "/';</script>";
        }
       
        return $return;
       
}
 
/**
 * This function create JavaScript instances of CKEditor
 * @author Samuel Sanchez
 * @access private
 * @param array $data (default: array())
 * @return string
 */
function cke_create_instance($data = array()) {
       
    $return = "<script type=\"text/javascript\">
        CKEDITOR.replace('" . $data['id'] . "', {";
   
                //Adding config values
                if(isset($data['config'])) {
                        foreach($data['config'] as $k=>$v) {
                               
                                // Support for extra config parameters
                                if (is_array($v)) {
                                        $return .= $k . " : [";
                                        $return .= config_data($v);
                                        $return .= "]";
                                       
                                }
                                else {
                                        $return .= $k . " : '" . $v . "'";
                                }
 
                                if($k !== end(array_keys($data['config']))) {
                                                $return .= ",";
                                        }                                      
                        }
                }                      
                               
    $return .= '});</script>'; 
   
    return $return;
       
}
 
/**
 * This function displays an instance of CKEditor inside a view
 * @author Samuel Sanchez
 * @access public
 * @param array $data (default: array())
 * @return string
 */
function display_ckeditor($data = array())
{
        // Initialization
        $return = cke_initialize($data);
       
    // Creating a Ckeditor instance
    $return .= cke_create_instance($data);
       
 
    // Adding styles values
    if(isset($data['styles'])) {
       
        $return .= "<script type=\"text/javascript\">CKEDITOR.addStylesSet( 'my_styles_" . $data['id'] . "', [";
   
       
            foreach($data['styles'] as $k=>$v) {
               
                $return .= "{ name : '" . $k . "', element : '" . $v['element'] . "', styles : { ";
 
                if(isset($v['styles'])) {
                        foreach($v['styles'] as $k2=>$v2) {
                               
                                $return .= "'" . $k2 . "' : '" . $v2 . "'";
                               
                                        if($k2 !== end(array_keys($v['styles']))) {
                                                 $return .= ",";
                                        }
                        }
                }
           
                $return .= '} }';
               
                if($k !== end(array_keys($data['styles']))) {
                                $return .= ',';
                        }              
               
 
            }
           
            $return .= ']);';
               
                $return .= "CKEDITOR.instances['" . $data['id'] . "'].config.stylesCombo_stylesSet = 'my_styles_" . $data['id'] . "';
                </script>";            
    }  
 
    return $return;
}
 
/**
 * config_data function.
 * This function look for extra config data
 *
 * @author ronan
 * @link http://kromack.com/developpement-php/codeigniter/ckeditor-helper-for-codeigniter/comment-page-5/#comment-545
 * @access public
 * @param array $data. (default: array())
 * @return String
 */
function config_data($data = array())
{
        $return = '';
        foreach ($data as $key)
        {
                if (is_array($key)) {
                        $return .= "[";
                        foreach ($key as $string) {
                                $return .= "'" . $string . "'";
                                if ($string != end(array_values($key))) $return .= ",";
                        }
                        $return .= "]";
                }
                else {
                        $return .= "'".$key."'";
                }
                if ($key != end(array_values($data))) $return .= ",";
 
        }
        return $return;
}